Energy gaps of the fractional quantum hall effect measured by magneto-optics

verfasst von

I. V. Kukushkin, N. J. Pulsford, K. von Klitzing, K. Ploog, R. J. Haug, S. Koch, V. B. Timofeev

Abstract

We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.

Externe Organisation(en)

Max-Planck-Institut für Festkörperforschung
RAS - Institute of Solid State Physics

Typ

Artikel

Journal

Europhysics Letters (EPL)

Band

18

Seiten

63-68

Anzahl der Seiten

6

ISSN

0295-5075

Publikationsdatum

02.1992

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.1209/0295-5075/18/1/012 (Zugang: Unbekannt)